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McDonald's apologised Thursday after it briefly posted on Twitter a blast criticising President Donald Trump, which the company blamed on a hack from an external source.

The quickly deleted tweet offered an uncharitable appraisal of Trump, saying, "You are actually a disgusting excuse of a President and we would love to have Barack Obama back, also you have tiny hands."

The tweet was removed mid-morning Thursday soon after being posted to one of McDonald's official Twitter feeds, but not before being retweeted more than a thousand times and garnering plenty of attention in political and media circles.

The quickly deleted tweet offered an uncharitable appraisal of Trump, saying, 'You are actually a disgusting excuse of a President and we would love to have Barack Obama back, also you have tiny hands'